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27
RESULTS

Media Type
27
texts
Topics & Subjects
13
HELIPORTS
7
Heliports
7
NASA Technical Reports Server (NTRS)
5
DTIC Archive
5
HELICOPTERS
5
LANDING FIELDS
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Collection
12
American Libraries
7
NASA Network Resource and Training Site
5
Defense Technical Information Archive
5
FEDLINK - United States Federal Collection
5
San Francisco Public Library
5
The National Agricultural Library
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Creator
7
nasa technical reports server (ntrs)
5
defense technical information center
2
departments of the army, and the air force
2
murphy, james l
2
san francisco (calif.). planning dept
2
united states. forest service. alaska region
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Language
27
English
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